window.onload = function() {
    const bigBox = document.querySelector('.bigBox');
    const bigBox2 = document.querySelector('.bigBox2')
        // const a = document.querySelector('.min');
        // const max = document.querySelector('.max');


    // a.addEventListener('click', function() {
    //     bigBox.style.display = 'none';
    //     bigBox2.style.display = 'block'
    // })
    // max.addEventListener('click', function() {
    //     bigBox2.style.display = 'none';
    //     bigBox.style.display = 'block'
    // })

    var VIP = localStorage.getItem('vip');
    //验证

    //生成并渲染出验证码图形
    function draw(show_num) {
        var canvas_width = $('#canvas').width();
        var canvas_height = $('#canvas').height();
        var canvas = document.getElementById("canvas"); //获取到canvas的对象
        var context = canvas.getContext("2d"); //获取到canvas画图的环境，演员表演的舞台
        canvas.width = canvas_width;
        canvas.height = canvas_height;
        var sCode = "a,b,c,d,e,f,g,h,i,j,k,m,n,p,q,r,s,t,u,v,w,x,y,z,A,B,C,E,F,G,H,J,K,L,M,N,P,Q,R,S,T,W,X,Y,Z,1,2,3,4,5,6,7,8,9,0";
        var aCode = sCode.split(",");
        var aLength = aCode.length; //获取到数组的长度
        for (var i = 0; i < 4; i++) { //这里的for循环可以控制验证码位数（如果想显示6位数，4改成6即可）
            var j = Math.floor(Math.random() * aLength); //获取到随机的索引值
            // var deg = Math.random() * 30 * Math.PI / 180;//产生0~30之间的随机弧度
            var deg = Math.random() - 0.5; //产生一个随机弧度
            var txt = aCode[j]; //得到随机的一个内容
            show_num[i] = txt.toLowerCase();
            var x = 10 + i * 20; //文字在canvas上的x坐标
            var y = 20 + Math.random() * 8; //文字在canvas上的y坐标
            context.font = "bold 23px 微软雅黑";
            context.translate(x, y);
            context.rotate(deg);
            context.fillStyle = randomColor();
            context.fillText(txt, 0, 0);
            context.rotate(-deg);
            context.translate(-x, -y);
        }
        for (var i = 0; i <= 5; i++) { //验证码上显示线条
            context.strokeStyle = randomColor();
            context.beginPath();
            context.moveTo(Math.random() * canvas_width, Math.random() * canvas_height);
            context.lineTo(Math.random() * canvas_width, Math.random() * canvas_height);
            context.stroke();
        }
        for (var i = 0; i <= 30; i++) { //验证码上显示小点
            context.strokeStyle = randomColor();
            context.beginPath();
            var x = Math.random() * canvas_width;
            var y = Math.random() * canvas_height;
            context.moveTo(x, y);
            context.lineTo(x + 1, y + 1);
            context.stroke();
        }
    }
    //得到随机的颜色值
    function randomColor() {
        var r = Math.floor(Math.random() * 256);
        var g = Math.floor(Math.random() * 256);
        var b = Math.floor(Math.random() * 256);
        return "rgb(" + r + "," + g + "," + b + ")";
    }

    const uuu = document.getElementById('uuu');
    const sss = document.getElementById('sss');

    const login = document.querySelector('.inputButton');
    console.log(uuu, sss, login);
    var show_num = [];
    draw(show_num);
    $("#canvas").on('click', function() {
        draw(show_num);
    })
    login.addEventListener('click', function() {
        let a = uuu.value;
        let b = sss.value;
        var an = 0;
        $(function() {
            console.log(111111);


            // $(".inputButton").on('click', function() {
            console.log(111111111);
            var val = $(".input-val").val().toLowerCase();
            var num = show_num.join("");
            if (val == '') {
                an = 1;
                console.log(an);
                // alert('请输入验证码！');
            } else if (val == num) {
                an = 2
                    // alert('提交成功！');
                $(".input-val").val('');
                // draw(show_num);
            } else {
                an = 3
                    // alert('验证码错误！请重新输入！');
                $(".input-val").val('');
                // draw(show_num);
            }
            // })
        })
        $.ajax({
            url: `http://192.168.3.184:7001/adminlogin`,
            method: "post",
            headers: {
                token: localStorage,
                VIP

            },
            data: {
                admin_name: a,
                admin_pswd: b
            },
            success: function(res) {
                console.log(res);
                if (res.msg === '请输入账号' && an === 1) {
                    uuu.setAttribute('placeholder', '请输入账号!')
                    uuu.id = 'd'
                    let timer;
                    timer = setTimeout(function() {
                        window.location.reload()
                    }, 1000)

                } else if (res.msg === '该账号不存在' && an === 1) {

                    uuu.value = ''
                    uuu.setAttribute('placeholder', '管理员不存在!')
                    uuu.id = 'd'

                    timer = setTimeout(function() {
                        window.location.reload()
                    }, 1000)

                } else if (res.msg === '请输入密码' && an === 1) {
                    sss.setAttribute('placeholder', '请输入密码');
                    sss.id = 'd';
                    timer = setTimeout(function() {
                        window.location.reload()
                    }, 1000)
                } else if (res.msg === '密码错误' && an === 1) {


                    sss.value = ''
                    sss.setAttribute('placeholder', '密码错误');
                    sss.id = 'd';
                    timer = setTimeout(function() {
                        // window.location.reload()
                    }, 1000)
                } else if (res.msg === '登录成功' && an === 1) {
                    const yzm = document.querySelector('.input-val');
                    console.log(yzm);
                    yzm.value = '';
                    yzm.setAttribute('placeholder', '请输入验证码！');
                    yzm.id = 'd';
                } else if (res.msg === '登录成功' && an === 3) {
                    const yzm = document.querySelector('.input-val');
                    // console.log(yzm);
                    yzm.value = '';
                    yzm.setAttribute('placeholder', '验证码有误！');
                    yzm.id = 'd';
                } else if (res.msg === '登录成功' && an === 2 && res.token !== '') {
                    alert('登录成功')
                    console.log(res);
                    localStorage.setItem('name', res.admin_name)
                    localStorage.setItem('mytoken', res.token)

                    localStorage.setItem('vip', res.VIP);
                    window.location.href = '后台用户列表.html'

                }


            }
        })
    })




}